rahem61 rahem61

01-07-2017
Mathematics

contestada

the law of cosine is c2 = a2 + b2 – 2ab cos C. find the value of 2ab cos C

Respuesta :

Аноним Аноним

01-07-2017

add 2ab cos C to both sides of the '=':-

c2 + 2ab cos C = a2 + b2

now subtract c2 from both sides:-

2ab cos C = a2 + b2 - c2

Answer Link

cawinterf cawinterf

06-12-2020

Answer: 37

Step-by-step explanation:

Answer Link

Otras preguntas

Can someone help me in this question? The radius of the front wheel of Brian's bike is 64cm. Brian goes for a cycle and travels 33.47km. How many full revolutio

Your classmate Ricardo saw a recent exhibit on the indigenous cultures in the Americas and their basketry work. He tells his family what he knows about their ba

Consider the 65 N light fixture supported as in the figure. Find the tension in the supporting wires.

How is the amount of sunlight absorbed by earth's surface and the amount of energy released by earth kept in balance?

Mark’s meal costs $21.11. He wants to leave a tip of 20.00%. What is the total charge for Mark’s meal? How much was the tip?

Gavin bought 3 pizzas for a party. Each pizza had 8 slices. There were 8 other people at the party. Everyone ate the same number of slices. How many slice did e

number 9 !!!! please answer !!!! explain how u got the answer and the answer of cpurse

A human’s knee joint is best described as

VERY IMPORTANT QUESTION PLEASE SOLVE IT:(

I don’t get it if explain plz